US2703797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-active compositions
Assignee: GAF Chemicals Corp
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Filing: 1949-12-15
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Granted: 1955-03-08
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Expires: 1969-12-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:36
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/42; C11D1/44; C07; C07C; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/26; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
AS A NOVEL COMPOSITION OF MATTER, SOLUBLE IN WATER AND HAVING SURFACE-ACTIVE PROPERTIES THEREIN, AN N-POLYETHENOXYLATED DEHYDROABIETINYL AMINE CONTAINING 4 TO 40 ETHENOXY RADICALS PER MOL OF SAID AMINE.
Claim 2
Dependent Claim
29 words
AS A NOVEL COMPOSITION OF MATTER, SOLUBLE IN WATER AND HAVING SURFACE-ACTIVE PROPERTIES THEREIN, AN N-POLYETHENOXYLATED DEHYDROABIETINYL AMINE CONTAINING 4 TO 40 ETHENOXY RADICALS PER MOL OF SAID AMINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |